Miboujin ~Numeriau Nikuyoku to Midara ni Nureru Mitsu Tsubo~

This visual novel takes a darker turn, focusing on a widow, her daughter, and the daughter's tutor. You can play as one of two protagonists: the recently deceased husband's brother, or a college student who is a classmate and childhood friend of the tutor. Both men are decent fellows who would have offered support in other ways, but after the husband's death, they stumble upon a mysterious video of a woman bound, face hidden, being violated and clearly enjoying it. They can't recognize her face, but the voice is unmistakable—it's the widow. Driven by the footage, each man devises his own plan to achieve the same lustful goal.